Recent content by TC777

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    1975 Johnson 70 strange wot issue?

    Hello all, my engine is acting up only at wot. It runs almost flawless at other throttle positions only missed a few times during 4 hours, but any time i put it at wot it would miss constant. It jumps out of the hole but once it reaches top rpm it starts to miss like it is getting air in the gas...
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    Idle question

    When running on muffs I took each spark plug wire off (one at a time). The engine would just about stall when I took #1 and #2 off. But, when I would take #3 off, it didn't change much. When running it on the lake at wot it seems to run good 31-32mph. Any advice? Thanks! 1975 Johnson 70hp
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    Don't Want to Start it Lean!

    Carbs clean. My low speed jet doesn't have a set needle. It has a screw plug. My high speed jet has a drain plug. Are both these jets fixed? Or is my low speed adjustment the screw plug. When I disassembled the carbs everything was seated (the jets and the plugs). Thanks for the help. I don't...
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    How to disconnect Linkage for carb removal

    I have all the fuel lines off, now to the linkage. How do I disconnect the linkage? :facepalm: I'm a newbie.... :D 1975 70hp Johnson Electric Choke
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    WOT bogging down

    Decarbed Friday. Saturday went to the lake. Performed great. Had a little bog when heading to the dock to load up. I thought it was running out of gas. Today went to the lake and when I opened it up, it would not even plane out. Did this for 20-30 min. Changed plugs, still same thing... Cleaned...
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    Decarbed engine

    I followed the instructions from the sticky pretty closely. I mixed 3/4 can of seafoam with 1 gallon gas/oil. Ran it until it got up to temp (on muffs). Took the spark plugs out shot some seafoam in waited 15 min, then started it up and shot the rest of it through each carb. Ran the gallon...
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    Spark Plugs and top of Piston Question

    I bought a boat Friday. It has a 1975 Johnson 70hp engine on it. It cranks right up and idles well, but I haven't had it on the water yet. It has a fuel leak where the cover is for the carbs. I took the cover off and sure enough half a gasket. I have no idea what this gasket is called but it is...
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    1970 16' Super Sport V

    Can't wipe this :D off my face! Brought it home Friday! http://s1208.photobucket.com/albums/cc375/1970SS/
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    Outboard vs. I/O

    I've been looking around and came across a few nice I/O SS. I've been hesitant to even look at them because of some things I've read on this forum. I know some of you guys are die hard outboard engines from reading a few post. I also know a few of the guys on here run mercrusiers. What are the...
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    1971 ss ?

    Hello all, I am going to look at a 1971 SS tomorrow. It has the original mercury thunderbolt 65hp on it. Has not been ran in 3 or 4 years. Any advice on what to be looking for? I have never owned a boat, so I don't know what to look for or at :facepalm:. I know you guys can point me in the...
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    Manufacture Opinions Wanted

    Hello I have been looking for a boat for 2 years. Between 1985-1995 what boat manufactures made well built boats? I am looking for something 16-18ft, bowrider, possibly a fish/ski, more of a family boat. I know that any well built boat can be junk because of how it was maintained, and many boats...
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    Blue Fin Boats

    What do you guys think about aluminum blue fin boats? What is the pros and cons of aluminum over fiberglass. What do I need to look for when looking at an aluminum hull? I found a mid to late 80s model 17' with an evinrude 70hp.
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    1990 Johnson 50hp

    Hello all, I want to know if this motor is a winner (generally speaking). It looks as if it has been taken care of. Any common problems with this engine? Does it make good power? It is behind a 15ft sunbird. Thanks and have a great day!
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    Compression Question

    1988 Merc 135hp compression test 115,118,118,118,119,114. Good or bad, and how much life is left?
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    1988 sea ray 18' bowrider

    What do you guys think of this boat (pros and cons). It has the mercury 135hp outboard pushing it. I am thinking of buying it. Good or bad choice?
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